Folding electronic device

Abstract

The present application relates to a foldable electronic device, comprising a central base, a connection module, a first wing, a first transmission member, a first panel body, a second wing, a second transmission member, a second panel body, a meshing synchronization module, a flexible module and a flexible screen. The first panel body and the second panel body can be transformed between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, a first support plate, a second support plate and a lifting plate jointly support a bendable area. When the first panel body and the second panel body are in the folded state, the first support plate, the second support plate and the lifting plate jointly define a containing space to contain the bendable area.

Description

Technical Field

[0001] This invention relates to a foldable electronic device, and more particularly to a foldable electronic device having a flexible screen and a linkage structure on both sides that pivots synchronously. Background Technology

[0002] Foldable electronic devices are becoming increasingly popular in the market. These devices utilize existing structures such as flexible displays and hinge mechanisms. Through the coordinated movement of multiple linkages, lifting plates, and support plates, the flexible display screen can be flattened or bent when the device transitions between unfolded and folded states. However, existing foldable electronic devices suffer from problems such as insufficient support for the flexible display screen when unfolded, insufficient space for the flexible display screen when folded, and asynchronous and unsmooth operation when transitioning between unfolded and folded states.

[0003] In view of this, the present invention provides a foldable electronic device that takes into account and ensures support, clearance space and opening / closing synchronization. Summary of the Invention

[0004] The main objective of this invention is to provide a foldable electronic device. Unlike the hinge structure of existing foldable electronic devices, this invention uses a symmetrically configured four-bar structure, coupled with a transmission component, a wing component, a support plate, and multiple actuation modules. Through the interlocking arc-shaped grooves, arc-shaped sliders, and gear synchronous pivoting structure on the transmission component and wing component, the flexible screen can switch between flat and bent states, improving the smoothness of device operation. In addition, through the assembly structure of the components, the central support force on the flexible screen is increased when it is unfolded, and when switching to the folded state, the protrusion presses against the support plate and the support plate is attracted by magnets, ensuring the clearance space when folded, which can meet the user's needs for durability and smooth operation of the foldable electronic device.

[0005] To achieve the above objectives, the present invention provides a foldable electronic device, comprising a central base, a connecting module, a first wing, a first transmission member, a first panel body, a second wing, a second transmission member, a second panel body, a meshing synchronization module, an elastic module, and a flexible screen. The central base includes a body portion, a lifting plate, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider, the first and second inner arc-shaped sliders being spaced apart from each other in the body portion. The lifting plate is movably disposed in the body portion and can change relative to a highest position and a lowest position. The connecting module is disposed in the central base and includes a first shaft and a second shaft respectively passing through the body portion. The first shaft extends along a first axis and has a first main gear, and the second shaft extends along a second axis and has a second main gear. The first wing includes a first support plate, at least one first inner arc-shaped groove, and at least... A first outer arc-shaped groove is provided. The first support plate is movably disposed on one side of the lifting plate. A first inner arc-shaped slider slides in the first inner arc-shaped groove, thereby allowing the first wing member to pivot relative to the main body about a first inner virtual axis. A first transmission member is sleeved on the first shaft and rotates synchronously with the first shaft. The first panel body includes a first bearing member, which can slide linearly relative to the first transmission member, and includes at least one first outer arc-shaped slider, which slides in the first outer arc-shaped groove, thereby allowing the first bearing member to pivot relative to the first wing member about a first outer virtual axis. The second wing member includes a second support. The second panel body comprises a plate, at least one second inner arc-shaped groove, and at least one second outer arc-shaped groove. The second support plate is movably disposed on the opposite side of the lifting plate. The second inner arc-shaped slider slides in the second inner arc-shaped groove, thereby allowing the second wing member to pivot relative to the main body about a second inner virtual axis. The second transmission member is sleeved on the second shaft and rotates synchronously with the second shaft. The second panel body includes a second bearing member, which can linearly slide relative to the second transmission member, and includes at least one second outer arc-shaped slider, which slides in the second outer arc-shaped groove, thereby allowing the second bearing member to pivot relative to the second wing member about a second outer virtual axis. The axial pivot is simulated; the meshing synchronization module includes a synchronization support block, a first auxiliary gear, and a second auxiliary gear. The two ends of the synchronization support block are respectively sleeved on the first shaft and the second shaft. The first auxiliary gear and the second auxiliary gear are rotatably mounted on the synchronization support block and mesh with each other. The first auxiliary gear meshes with the first main gear in a counter-rotating manner, and the second auxiliary gear meshes with the second main gear in a counter-rotating manner, so that the first transmission member and the second transmission member can rotate synchronously in opposite directions; the elastic module includes a pusher member, which is slidably sleeved on the first shaft and the second shaft and movably meshes with the first transmission member and the second transmission member;The flexible screen is disposed on the first panel body and the second panel body, and includes a bendable area; wherein the first panel body and the second panel body can switch between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, the flexible screen is flattened, the lifting plate is located at the highest position, and the first support plate, the second support plate, and the lifting plate jointly support the bendable area. When the first panel body and the second panel body are in the folded state, the flexible screen is bent, the lifting plate is located at the lowest position, and the first support plate, the second support plate, and the lifting plate jointly define an accommodating space to accommodate the bendable area.

[0006] In one embodiment of the present invention, when the first panel body and the second panel body are in the unfolded state relative to each other, the first support plate and the second support plate are substantially coplanar with the lifting plate; when the first panel body and the second panel body are in the folded state relative to each other, the first panel body and the second panel body are substantially parallel to each other at intervals, and the first support plate and the second support plate are not parallel to the lifting plate to jointly define the accommodating space.

[0007] In one embodiment of the present invention, when the first panel body and the second panel body change from the unfolded state to the folded state, the first wing and the second wing respectively pivot relative to the body portion by a first angle about the first inner virtual axis and the second inner virtual axis, and the first panel body and the second panel body rotate relative to the body portion by a second angle, wherein the first angle is greater than the second angle.

[0008] In one embodiment of the present invention, the first support member further includes a first extension plate and a first sliding post, the first transmission member further includes a first receiving groove extending substantially perpendicular to the first axis, the first extension plate and the first sliding post extending along the first axis and slidingly disposed in the first receiving groove, the second support member further includes a second extension plate and a second sliding post, the second transmission member further includes a second receiving groove extending substantially perpendicular to the second axis, the second extension plate and the second sliding post extending along the second axis and slidingly disposed in the second receiving groove.

[0009] In one embodiment of the present invention, the connecting module further includes a fixing member, and a first ear and a second ear extending laterally from the fixing member. The first ear forms a first shaft hole through the first axis for the first shaft to pass through, and the second ear forms a second shaft hole through the second axis for the second shaft to pass through.

[0010] In one embodiment of the present invention, the pusher further includes a first driven cam and a second driven cam, respectively sleeved on the first shaft and the second shaft. The elastic module further includes a first elastic element and a second elastic element, respectively sleeved on the first shaft and the second shaft. The two ends of the first elastic element abut against the first ear and the first driven cam, and the two ends of the second elastic element abut against the second ear and the second driven cam, respectively.

[0011] In one embodiment of the present invention, the first transmission member further includes a first active cam, which is slidably sleeved on the first shaft along the first axis and rotates synchronously with the first shaft. The second transmission member further includes a second active cam, which is slidably sleeved on the second shaft along the second axis and rotates synchronously with the second shaft. The first active cam and the second active cam respectively cooperate with the first driven cam and the second driven cam. When the first support member and the second support member are in a half-open state between the unfolded state and the folded state, the first active cam and the second active cam abut against the first driven cam and the second driven cam, thereby compressing the first elastic member and the second elastic member. When the first support member and the second support member are in the unfolded state or the folded state, the first elastic member and the second elastic member are released accordingly.

[0012] In one embodiment of the present invention, the lifting plate further includes a locking fastener, a nut, and a screw hole. The nut is disposed in the central seat body, and the central seat body further has a stop portion. The locking fastener passes through the screw hole and screws the nut. When the lifting plate rises to the highest position relative to the central seat body, the nut interferes with the stop portion.

[0013] In one embodiment of the present invention, the first elastic member and the second elastic member are each a compression spring.

[0014] In one embodiment of the present invention, the first support plate and the second support plate each have at least one first protrusion and at least one second protrusion, and the lifting plate further includes at least one first groove and at least one second groove, the first groove corresponding to the first protrusion and the second groove corresponding to the second protrusion. When the first panel body and the second panel body change from the unfolded state to the folded state, the first protrusion and the second protrusion respectively press against the lifting plate in the first groove and the second groove, so that the lifting plate is located in the lowest position.

[0015] In one embodiment of the present invention, the first support plate has at least one first abutment top, and the second support plate has at least one second abutment top. When the first carrier and the second carrier are in the unfolded state, the first abutment top, the second abutment top, the first wing and the second wing together lift the lifting plate to the highest position.

[0016] In one embodiment of the present invention, the meshing synchronization module further includes at least one magnet disposed on the synchronization support block and provides a constant magnetic attraction force to the lifting plate, causing the lifting plate to tend to sink toward the lowest position.

[0017] In one embodiment of the present invention, the first axis, the first outer virtual axis, the first inner virtual axis, the second axis, the second outer virtual axis, and the second inner virtual axis are parallel to each other and do not overlap.

[0018] Other objects of the invention, as well as the technical means and embodiments of the invention, will be apparent to those skilled in the art upon referring to the accompanying drawings and the embodiments described below. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the foldable electronic device of the present invention in its unfolded state;

[0020] Figure 2 This is a partial exploded view of the foldable electronic device of the present invention;

[0021] Figure 3 This is a partial schematic diagram of the foldable electronic device of the present invention in its unfolded state;

[0022] Figure 4 This is a partial schematic diagram of the foldable electronic device of the present invention in its folded state;

[0023] Figure 5 This is a partial cross-sectional view of the foldable electronic device of the present invention in its unfolded state;

[0024] Figure 6 This is a partial cross-sectional view of the foldable electronic device of the present invention in its folded state;

[0025] Figure 7 This is an exploded view of the central base, the first support plate, and the second support plate of the present invention.

[0026] Figure 8 This is a schematic diagram of the first wing member and the second wing member of the present invention;

[0027] Figure 9 This is an exploded view of the connection module, engagement synchronization module, and elastic module of the present invention.

[0028] Figure 10 This is a schematic diagram of the first transmission member, the first bearing member, the second transmission member, and the second bearing member of the present invention;

[0029] Figure 11 This is a schematic diagram of a first transmission member, a first bearing member, a second transmission member, and a second bearing member according to another embodiment of the present invention;

[0030] Figure 12 This is a partial cross-sectional view of the foldable electronic device of the present invention in its unfolded state;

[0031] Figure 13 This is a partial cross-sectional view of the foldable electronic device of the present invention in its folded state;

[0032] Figure 14 This is a partial schematic diagram illustrating the operation of the foldable electronic device of the present invention; and

[0033] Figure 15 This is a partial schematic diagram illustrating the operation of the foldable electronic device of the present invention.

[0034] Explanation of reference numerals in the attached figures

[0035] 1000 Foldable Electronic Devices 2000 Flexible Screens

[0036] 3000 outer shell 1 central base

[0037] 11 Main body part 12 Lifting plate

[0038] 121 Locking fastener 122 Nut

[0039] 123 Screw hole 124 First groove

[0040] 125 Second groove 13 First inner arc-shaped slider

[0041] 14 Second inner arc-shaped slider 15 Stop part

[0042] 2. Connecting module 21. First shaft

[0043] 211 First main gear 22 Second shaft

[0044] 221 Second main gear 23 Fixing component

[0045] 231 Connecting nut 232 Washer

[0046] 24 First ear part 241 First shaft hole

[0047] 25 Second Ear 251 Second Shaft Hole

[0048] 3 First wing component 30 First block

[0049] 31 First support plate 311 First protrusion

[0050] 312 First abutment top 32 First inner arc-shaped groove

[0051] 33 First outer arc groove 4 First transmission component

[0052] 41 First active cam 42 First receiving groove

[0053] 5 First panel body 51 First carrier

[0054] 511 First extension plate 512 First sliding column

[0055] 52 First outer arc-shaped slider 6 Second wing

[0056] 60 Second block 61 Second support plate

[0057] 611 Second protrusion 612 Second abutment top

[0058] 62 Second inner arc-shaped groove 63 Second outer arc-shaped groove

[0059] 7 Second transmission component 71 Second driving cam

[0060] 72 Second receiving slot 8 Second panel body

[0061] 81 Second bearing member 811 Second extension plate

[0062] 811 Second sliding column; 82 Second outer arc-shaped slider

[0063] 9. Meshing Synchronization Module 91. Synchronization Support Block

[0064] 92 First auxiliary gear; 93 Second auxiliary gear

[0065] 94 Magnet E Elastic Module

[0066] E1 pusher component, E11 first driven cam

[0067] E12 Second Driven Cam, E2 First Elastic Element

[0068] E3 Second Elastic Component 2001 Bendable Area

[0069] L1 First axis L2 Second axis

[0070] X1 First Inner Virtual Axis X2 First Outer Virtual Axis

[0071] Y1 Second Inner Virtual Axis; Y2 Second Outer Virtual Axis

[0072] θ1 is the first angle, and θ2 is the second angle. Detailed Implementation

[0073] The present invention will be explained below through embodiments. These embodiments are not intended to limit the implementation of the invention to any specific environment, application, or special method as described in the embodiments. Therefore, the descriptions of the embodiments are merely illustrative of the invention and not intended to limit it. It should be noted that components not directly related to the present invention have been omitted from the following embodiments and drawings, and the dimensional relationships between the components in the drawings are for ease of understanding only and are not intended to limit the actual scale.

[0074] First, please refer to Figures 1 to 4 , Figure 1 The diagram shown is a schematic representation of an embodiment of the foldable electronic device 1000 of the present invention in its unfolded state. Figure 2 The image shown is a partial exploded view of an embodiment of the foldable electronic device 1000 of the present invention. Figure 3 and Figure 4 The figures shown are partial schematic diagrams of an embodiment of the foldable electronic device 1000 of the present invention in its unfolded and folded states. The foldable electronic device 1000 includes a central base 1, a connecting module 2, a first wing 3, a first transmission member 4, a first panel body 5, a second wing 6, a second transmission member 7, a second panel body 8, a meshing synchronization module 9, an elastic module E, a flexible screen 2000, and a housing 3000. The flexible screen 2000 is disposed on the first panel body 5 and the second panel body 8, and the flexible screen 2000 includes a bendable area 2001.

[0075] Please refer to the above as well. Figures 5 to 7 The central seat 1 includes a main body 11, a lifting plate 12, two first inner arc-shaped sliders 13, two second inner arc-shaped sliders 14, and a stop 15. The main body 11 is disposed within the outer casing 3000. The first inner arc-shaped sliders 13 are formed on the same side of the main body 11 at intervals, and the second inner arc-shaped sliders 14 are formed on the other side of the main body 11 at intervals. The lifting plate 12 is movably disposed on the main body 11 and can be positioned at a highest position (see reference). Figure 5 ) and a lowest position (see Figure 6 The change between ) and ). In addition, the stop part 15 is formed on the body part 11.

[0076] The lifting plate 12 further includes a locking fastener 121, a nut 122, a screw hole 123, two first grooves 124, and two second grooves 125. The nut 122 is disposed within the central base 1, and the locking fastener 121 passes through the screw hole 123 and screws onto the nut 122. The first grooves 124 are symmetrically formed on the same side of the lifting plate 12, and the second grooves 125 are symmetrically formed on the other side of the lifting plate 12. When the lifting plate 12 rises to its highest position relative to the main body 11, the nut 122 and the stop part 15 interfere with each other, thus restricting the lifting plate 12 to maintain its highest position. Conversely, when the lifting plate 12 descends to its lowest position relative to the main body 11, the nut 122 and the stop part 15 do not interfere with each other.

[0077] In this embodiment, the connecting module 2 is disposed on the central base 1, such as... Figure 9 As shown, the connecting module 2 includes a first shaft 21, a second shaft 22, a fixing member 23, a first ear 24, and a second ear 25. The first shaft 21 and the second shaft 22 are respectively inserted into the body portion 11. The first shaft 21 extends along a first axis L1 and has a first main gear 211, and the second shaft 22 extends along a second axis L2 and has a second main gear 221. One end of the first shaft 21 and the second shaft 22 is disposed in the meshing synchronization module 9, such that the first main gear 211 and the second main gear 221 are respectively adjacent to the meshing synchronization module 9. The first ear 24 and the second ear 25 extend laterally from the fixing member 23 and are disposed opposite to each other. The first ear 24 passes through the first axis L1 to form a first shaft hole 241 for the first shaft 21 to pass through, and the second ear 25 passes through the second axis L2 to form a second shaft hole 251 for the second shaft 22 to pass through. In addition, the fastener 23 includes two connecting nuts 231 and two washers 232. The connecting nuts 231 and the washers 232 are combined with each other and respectively sleeved on the first shaft 21 and the second shaft 22, for locking the first shaft 21 and the second shaft 22 to the fixing seat 23.

[0078] The following section will first explain the details of the pivoting structure on one side. Please refer to the following: Figure 8The first wing member 3 includes a first block 30, a first support plate 31, two first inner arc-shaped grooves 32, and two first outer arc-shaped grooves 33. The first support plate 31 is fixed to the first block 30 and movably disposed on one side of the lifting plate 12. The first inner arc-shaped grooves 32 and the first outer arc-shaped grooves 33 are respectively formed in groups on both sides of the first block 30. The first inner arc-shaped slider 13 of the central seat 1 slides in the first inner arc-shaped groove 32, thereby allowing the first wing member 3 to pivot relative to the main body 11 about a first inner virtual axis X1. In addition, the first support plate 31 has two first protrusions 311 and two first abutments 312. The first protrusions 311 and the first abutments 312 are formed on the same side of the first support plate 31 (i.e., the side adjacent to the lifting plate 12) spaced apart from each other. The first groove 124 of the lifting plate 12 corresponds to the first protrusions 311 and can operate on each other when changing between the unfolded and folded states. In this embodiment, considering the effect of supporting stability, the aforementioned first protrusion 311 and first abutment 312 are exemplified in two, and their number can be adjusted according to actual needs, which is not limited here.

[0079] The first transmission member 4 further includes a first drive cam 41 and a first receiving groove 42. The first drive cam 41 is a hollow end-face cam that can be slidably sleeved on the first shaft 21 along the first axis L1 and rotate synchronously with the first shaft 21. The first receiving groove 42 is substantially perpendicular to the first axis L1 and extends into the first transmission member 4.

[0080] Please refer to the above as well. Figure 2 , Figure 10 and Figure 15 The first panel body 5 includes a first support member 51 and two first outer arc-shaped sliders 52. The first support member 51 can slide linearly relative to the first transmission member 4. The first outer arc-shaped sliders 52 are slidably disposed in the first outer arc-shaped groove 33 of the first wing member 3, thereby allowing the first support member 51 to pivot relative to the first wing member 3 about a first outer virtual axis X2. Specifically, the first support member 51 also includes a first extension plate 511 and a first sliding post 512. The first extension plate 511 and the first sliding post 512 extend along the first axis L1 and are slidably disposed in the first receiving groove 42 of the first transmission member 4. The first extension plate 511 and the first sliding post 512 can slide back and forth in the first receiving groove 42. In other words, when the first panel body 5 is in the unfolded state, the first extension plate 511 and the first sliding post 512 are furthest from the central seat 1 relative to the first transmission member 4 (see reference). Figure 12 When the first panel body 5 is in a folded state, the first extension plate 511 and the first sliding column 512 are closest to the central seat 1 relative to the first transmission member 4 (see reference). Figure 13 ).

[0081] The following section will first explain the details of the pivot structure on the other side. Please refer to [link / reference needed]. Figure 4 and Figure 8 The second wing member 6 includes a second block 60, a second support plate 61, two second inner arc-shaped grooves 62, and two second outer arc-shaped grooves 63. The second support plate 61 is fixed to the second block 60 and movably disposed on the opposite side of the lifting plate 12. The second inner arc-shaped grooves 62 and the second outer arc-shaped grooves 63 are respectively formed in groups on both sides of the second block 60. The second inner arc-shaped slider 14 of the central seat 1 slides in the second inner arc-shaped groove 62, thereby allowing the second wing member 6 to pivot relative to the main body 11 about a second inner virtual axis Y1. In addition, the second support plate 61 has two second protrusions 611 and two second abutments 612. The second protrusions 611 and the second abutments 612 are formed on the same side of the second support plate 61 (i.e., the side adjacent to the lifting plate 12) spaced apart from each other. The second groove 125 of the lifting plate 12 corresponds to the second protrusions 611 and can operate on each other when changing between the unfolded and folded states. In this embodiment, considering the effect of supporting stability, the aforementioned second protrusion 611 and second abutment 612 are exemplified in two, and their number can be adjusted according to actual needs, which is not limited here.

[0082] In this embodiment, the second transmission member 7 further includes a second drive cam 71 and a second receiving groove 72. The second drive cam 71 is a hollow end-face cam that can be slidably sleeved on the second shaft 22 along the second axis L2 and rotates synchronously with the second shaft 22. The second receiving groove 72 is substantially perpendicular to the second axis L2 and extends into the second transmission member 7.

[0083] like Figure 2 , Figure 10 and Figure 15 As shown, in this embodiment, the second panel body 8 includes a second support member 81 and two second outer arc-shaped sliders 82. The second support member 81 can slide linearly relative to the second transmission member 7. The second outer arc-shaped sliders 82 are slidably disposed in the second outer arc-shaped groove 63 of the second wing member 6, thereby allowing the second support member 81 to pivot relative to the second wing member 6 about a second outer virtual axis Y2. Specifically, the second support member 81 also includes a second extension plate 811 and a second sliding post 812. The second extension plate 811 and the second sliding post 812 extend along the second axis L2 and are slidably disposed in the second receiving groove 72 of the second transmission member 7. The second extension plate 811 and the second sliding post 812 can slide back and forth in the second receiving groove 72. In other words, when the second panel body 8 is in the unfolded state, the second extension plate 811 and the second sliding post 812 are furthest from the central seat 1 relative to the second transmission member 7 (see reference). Figure 12When the second panel body 8 is in a folded state, the second extension plate 811 and the second sliding column 812 are closest to the central seat 1 relative to the second transmission member 7 (see reference). Figure 13 ).

[0084] The following describes the changes in the first panel body 5 and the second panel body 8 between the unfolded and folded states. When the first panel body 5 and the second panel body 8 are in the unfolded state, the flexible screen 2000 is flat, the lifting plate 12 is at its highest position, and the first support plate 31, the second support plate 61, and the lifting plate 12 together support the bendable area 2001. When the first panel body 5 and the second panel body 8 are in the folded state, the flexible screen 2000 can be bent, the lifting plate 12 is at its lowest position, and the first support plate 31, the second support plate 61, and the lifting plate 12 together define an accommodating space.

[0085] In detail, when the first panel body 5 and the second panel body 8 are in the unfolded state, the first wing 3, the second wing 6, the first abutment 312 and the second abutment 612 together lift the lifting plate 12 to the highest position, so that the lifting plate 12 is away from the body part 11. At this time, the first support plate 31 and the second support plate 61 are substantially coplanar with the lifting plate 12 and jointly support the bendable area 2001. Conversely, when the first panel body 5 and the second panel body 8 change from the unfolded state to the folded state, the first protrusion 311 of the first wing 3 and the second protrusion 611 of the second wing 6 press the lifting plate 12 downward at the first groove 124 and the second groove 125 respectively. When the lifting plate 12 is at the lowest position, the first panel body 5 and the second panel body 8 are substantially parallel to each other, and the first support plate 31 and the second support plate 61 are not parallel to the lifting plate 12. The accommodating space is used to accommodate the bendable area 2001.

[0086] In this embodiment, the first wing 3 and the second wing 6 may be provided with additional stops on the first outer arc groove 33 and the second outer arc groove 63, respectively. When the first panel body 5 and the second panel body 8 are in a folded state, the stops will interfere with the outer shell 3000, which can prevent the arc slider from derailing when it slides in the arc groove and produce a stopping and limiting effect.

[0087] In another embodiment of the present invention, compared to the combination of the first bearing member 51 slidingly disposed on the first transmission member 4 and the second bearing member 81 slidingly disposed on the second transmission member 7, they can be respectively arranged in opposite directions, such as... Figure 11As shown, the first bearing member 51 may include a receiving groove structure, the first transmission member 4 may include an extension plate structure, the extension plate structure is slidably disposed in the receiving groove structure, the second bearing member 81 may include a receiving groove structure, the second transmission member 7 may include an extension plate structure, the extension plate structure is slidably disposed in the receiving groove structure, and the same effect of mutual sliding during pivoting can be achieved.

[0088] Furthermore, the meshing synchronization module 9 includes a synchronization support block 91, a first auxiliary gear 92, a second auxiliary gear 93, and four magnets 94. The two ends of the synchronization support block 91 are respectively sleeved on the first shaft 21 and the second shaft 22. The first auxiliary gear 92 and the second auxiliary gear 93 are rotatably mounted on the synchronization support block 91 and mesh with each other. Specifically, the first auxiliary gear 92 meshes with the first main gear 211 in a counter-rotating manner, and the second auxiliary gear 93 meshes with the second main gear 221 in a counter-rotating manner, enabling the first transmission member 4 and the second transmission member 7 to rotate synchronously in opposite directions. Additionally, the magnet 94 is disposed in the synchronous support block 91. When the first panel body 5 and the second panel body 8 change from the unfolded state to the folded state, the first protrusion 311 and the second protrusion 611 can be used to press down the first groove 124 and the second groove 125, causing the lifting plate 12 to sink to the lowest position. At the same time, the magnet 94 can constantly provide a magnetic attraction force to the lifting plate 12, making the lifting plate 12 more inclined to sink to the lowest position and attach to the body part 11, forming an accommodating space for the bendable area 2001 of the flexible screen 2000. In this embodiment, considering the magnetic attraction force required for the lifting plate 12 to sink to the lowest position, four magnets 94 are used as an example. Their number and placement can be adjusted according to actual needs and are not limited here.

[0089] In this embodiment, the elastic module E includes a pusher E1, a first elastic element E2, and a second elastic element E3. The pusher E1 is slidably sleeved on the first shaft 21 and the second shaft 22, and is movably engaged with the first transmission element 4 and the second transmission element 7. The pusher E1 also includes a first driven cam E11 and a second driven cam E12, both of which are hollow end-face cams that can be sleeved on the first shaft 21 and the second shaft 22, respectively. On the other hand, the first elastic element E2 is sleeved on the first shaft 21, and the second elastic element E3 is sleeved on the second shaft 22. The two ends of the first elastic element E2 abut against the first ear 24 and the first driven cam E11, respectively, and the two ends of the second elastic element E3 abut against the second ear 25 and the second driven cam E12, respectively.

[0090] The following details the operation of the elastic module E. Please refer to the instructions below. Figure 14 and Figure 15The first driving cam 41 of the first transmission member 4 and the second driving cam 71 of the second transmission member 7 are respectively engaged with the first driven cam E11 and the second driven cam E12. When the first bearing member 51 and the second bearing member 81 are in a half-open state between the unfolded state and the folded state, rotating the first transmission member 4 and the second transmission member 7 will drive the first bearing member 51, the second bearing member 81, the first wing member 3 and the second wing member 6 to pivot. The first driving cam 41 of the first transmission member 4 and the second driving cam 71 of the second transmission member 7 abut against the first driven cam E11. The degree of compression of the first active cam 41 and the first passive cam E11 on the first axis L1 increases (i.e., the total length of the first active cam 41 and the first passive cam E11 on the first axis L1 increases, and the total length of the second active cam 71 and the second passive cam E12 on the second axis L2 increases), thereby compressing the first elastic element E2 and the second elastic element E3. In other words, when the first support member 51 and the second support member 81 are in the unfolded or folded state, the first elastic element E2 and the second elastic element E3 are correspondingly released. In this embodiment, the first elastic element E2 and the second elastic element E3 are each a pre-compressed compression spring, constantly providing an elastic force between the fixing member 23 and the first passive cam E11 and the second passive cam E12. In other embodiments of the present invention, other types of springs may be used instead, and this is not limited here.

[0091] In this embodiment, the first axis L1, the first outer virtual axis X2, the first inner virtual axis X1, the second axis L2, the second outer virtual axis Y2, and the second inner virtual axis Y1 are parallel to each other and do not overlap.

[0092] The following details the operation of the foldable electronic device 1000 in its unfolded and folded states. When the first panel body 5 and the second panel body 8 transition from the unfolded state to the folded state, the first inner arc-shaped groove 32 of the first wing member 3 and the second inner arc-shaped groove 62 of the second wing member 6, along with the first inner arc-shaped slider 13 and the second inner arc-shaped slider 14 of the central base 1, rotate. This rotation causes the first outer arc-shaped groove 33 of the first wing member 3 and the second outer arc-shaped groove 63 of the second wing member 6, along with the first outer arc-shaped slider 52 of the first panel body 5 and the second outer arc-shaped slider 82 of the second panel body 8, to rotate. This, in turn, causes the first extension 511 and the first sliding post 512 of the first support member 51, and the second extension 811 and the second sliding post 812 of the second support member 81, to slide in the first receiving groove 42 of the first transmission member 4 and the second receiving groove 72 of the second transmission member 7, respectively. Finally, this causes the first transmission member 4 and the second transmission member 7 to pivot in the opposite direction relative to the body part 11. Specifically, the first wing 3 and the second wing 6 pivot relative to the main body 11 by a first angle θ1 about the first inner virtual axis X1 and the second inner virtual axis Y1, respectively, so that the flexible screen 2000 is bent into a teardrop-shaped arc surface. The first support plate 31 and the second support plate 61 are not parallel to each other (gradually moving closer to each other away from the lifting plate 12). In other words, the first support plate 31 and the second support plate 61 rotate relative to the main body 11 by a first angle θ1. At this time, the first panel body 5 and the second panel body 8 form a second angle θ2 with respect to the main body 11. Similarly, the first transmission member 4 and the second transmission member 7 also pivot relative to the first shaft 21 and the second shaft 22 by a second angle θ2, respectively. The first angle θ1 is greater than the second angle θ2. Furthermore, based on structural stability and smooth rotation, the first angle θ1 is preferably greater than 90 degrees, and the second angle θ2 is preferably 90 degrees.

[0093] In practice, in the bendable area 2001 corresponding to the flexible screen 2000, another set of central base 1, connecting module 2, first wing 3, first transmission component 4, second wing 6, second transmission component 7, meshing synchronization module 9 and elastic module E can be set up, thereby jointly generating the aforementioned functions. Since their operation methods are the same, they will not be described in detail.

[0094] In summary, the foldable electronic device of the present invention utilizes a flexible screen in conjunction with multiple four-bar linkages including wings, load-bearing components, transmission components, and a central base, and provides a downward magnetic attraction force for the lifting plate via magnets. The first and second wings have two arc-shaped grooves, which allow the arc-shaped slider to pivot and drive the first and second panel bodies to change between unfolded and folded states. The lifting plate is attracted by magnets, thereby improving the smoothness of user operation of the foldable electronic device.

[0095] The above embodiments are merely illustrative of the present invention and to explain its technical features, and are not intended to limit the scope of protection of the present invention. Any changes or equivalent arrangements that can be easily made by those skilled in the art are within the scope of the present invention, and the scope of protection of the present invention should be determined by the claims of this application.

Claims

1. A foldable electronic device, characterized in that, include: A central seat includes a main body, a lifting plate, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider. The first inner arc-shaped slider and the second inner arc-shaped slider are respectively formed on the main body at intervals. The lifting plate is movably disposed on the main body and can be changed between a highest position and a lowest position. A connecting module is disposed in the central base and includes a first shaft and a second shaft respectively passing through the main body. The first shaft extends along a first axis and has a first main gear, and the second shaft extends along a second axis and has a second main gear. A first wing member includes a first support plate, at least one first inner arcuate groove and at least one first outer arcuate groove. The first support plate is movably disposed on one side of the lifting plate. The first inner arcuate slider slides in the first inner arcuate groove, thereby the first wing member can pivot relative to the main body about a first inner virtual axis. A first transmission component is sleeved on the first shaft and rotates synchronously with the first shaft; A first panel body includes a first support member, which is capable of linear sliding relative to the first transmission member, and includes at least a first outer arc-shaped slider, which is slidably disposed in the first outer arc-shaped groove, thereby enabling the first support member to pivot relative to the first wing member about a first outer virtual axis. A second wing member includes a second support plate, at least one second inner arcuate groove and at least one second outer arcuate groove. The second support plate is movably disposed on the opposite side of the lifting plate. The second inner arcuate slider slides in the second inner arcuate groove, thereby enabling the second wing member to pivot relative to the main body about a second inner virtual axis. A second transmission component is sleeved on the second shaft and rotates synchronously with the second shaft; A second panel body includes a second support member, which is capable of linear sliding relative to the second transmission member, and includes at least a second outer arc-shaped slider, which is slidably disposed in the second outer arc-shaped groove, thereby enabling the second support member to pivot relative to the second wing member about a second outer virtual axis. A meshing synchronization module includes a synchronization support block, a first auxiliary gear, and a second auxiliary gear. The two ends of the synchronization support block are respectively sleeved on the first shaft and the second shaft. The first auxiliary gear and the second auxiliary gear are rotatably mounted on the synchronization support block and mesh with each other. The first auxiliary gear meshes with the first main gear in a counter-rotating manner, and the second auxiliary gear meshes with the second main gear in a counter-rotating manner, so that the first transmission member and the second transmission member can rotate synchronously in opposite directions. An elastic module includes a pushing member slidably sleeved on the first shaft and the second shaft, and movably engaged with the first transmission member and the second transmission member; and A flexible screen is disposed on the first panel body and the second panel body, and includes a bendable area; The first panel body and the second panel body can switch between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, the flexible screen is flat, the lifting plate is at the highest position, and the first support plate, the second support plate and the lifting plate together support the bendable area. When the first panel body and the second panel body are in the folded state, the flexible screen is bent, the lifting plate is at the lowest position, and the first support plate, the second support plate and the lifting plate together define an accommodating space to accommodate the bendable area.

2. The foldable electronic device according to claim 1, characterized in that, When the first panel body and the second panel body are in the unfolded state, the first support plate and the second support plate are substantially coplanar with the lifting plate; when the first panel body and the second panel body are in the folded state, the first panel body and the second panel body are substantially parallel to each other, and the first support plate and the second support plate are not parallel to the lifting plate to jointly define the accommodating space.

3. The foldable electronic device according to claim 2, characterized in that, When the first panel body and the second panel body change from the unfolded state to the folded state, the first wing and the second wing respectively pivot about the first inner virtual axis and the second inner virtual axis relative to the body part by a first angle, and the first panel body and the second panel body rotate about the body part by a second angle, the first angle being greater than the second angle.

4. The foldable electronic device according to claim 3, characterized in that, The first support member further includes a first extension plate and a first sliding post. The first transmission member further includes a first receiving groove that extends substantially perpendicular to the first axis. The first extension plate and the first sliding post extend along the first axis and slide in the first receiving groove. The second support member further includes a second extension plate and a second sliding post. The second transmission member further includes a second receiving groove that extends substantially perpendicular to the second axis. The second extension plate and the second sliding post extend along the second axis and slide in the second receiving groove.

5. The foldable electronic device according to claim 4, characterized in that, The connection module also includes a fixing member, and a first ear and a second ear extending laterally from the fixing member. The first ear forms a first shaft hole through the first axis for the first shaft to pass through, and the second ear forms a second shaft hole through the second axis for the second shaft to pass through.

6. The foldable electronic device according to claim 5, characterized in that, The pushing component further includes a first driven cam and a second driven cam, respectively sleeved on the first shaft and the second shaft. The elastic module further includes a first elastic element and a second elastic element, respectively sleeved on the first shaft and the second shaft. The two ends of the first elastic element abut against the first ear and the first driven cam, and the two ends of the second elastic element abut against the second ear and the second driven cam, respectively. The first transmission component further includes a first driving cam, which is slidably sleeved on the first shaft along the first axis and rotates synchronously with the first shaft. The second transmission component further includes a second driving cam. The second active cam is slidably sleeved on the second shaft along the second axis and rotates synchronously with the second shaft. The first active cam and the second active cam cooperate with the first driven cam and the second driven cam, respectively. When the first support member and the second support member are in a half-open state between the unfolded state and the folded state, the first active cam and the second active cam abut against the first driven cam and the second driven cam, thereby compressing the first elastic member and the second elastic member. When the first support member and the second support member are in the unfolded state or the folded state, the first elastic member and the second elastic member are released accordingly.

7. The foldable electronic device according to claim 6, characterized in that, The lifting plate also includes a locking fastener, a nut, and a screw hole. The nut is disposed in the central seat body, and the central seat body has a stop portion. The locking fastener passes through the screw hole and is screwed onto the nut. When the lifting plate rises to the highest position relative to the central seat body, the nut interferes with the stop portion. The first elastic member and the second elastic member are each a compression spring.

8. The foldable electronic device according to any one of claims 1 to 7, characterized in that, The first support plate and the second support plate each have at least one first protrusion and at least one second protrusion, and the lifting plate also includes at least one first groove and at least one second groove. The first groove corresponds to the first protrusion and the second groove corresponds to the second protrusion. When the first panel body and the second panel body change from the unfolded state to the folded state, the first protrusion and the second protrusion press against the lifting plate at the first groove and the second groove respectively, so that the lifting plate is located at the lowest position.

9. The foldable electronic device according to claim 8, characterized in that, The first support plate has at least one first abutment, and the second support plate has at least one second abutment. When the first support member and the second support member are in the unfolded state, the first abutment, the second abutment, the first wing member, and the second wing member together lift the lifting plate to the highest position.

10. The foldable electronic device according to claim 9, characterized in that, The meshing synchronization module also includes at least one magnet disposed on the synchronization support block and provides a constant magnetic attraction force to the lifting plate, causing the lifting plate to tend to sink toward the lowest position. The first axis, the first outer virtual axis, the first inner virtual axis, the second axis, the second outer virtual axis, and the second inner virtual axis are parallel to each other and do not overlap.

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